The security issue is an XSS exploit discovered by Jeremias Reith that fortunately only affects IP-based virtual servers running on Apache 2.x. If you are interested only in the security fix, copy wp-includes/feed.php and wp-includes/version.php from the 2.6.5 release package.

2.6.5 contains three other small fixes in addition to the XSS fix.Â The first prevents accidentally saving post meta information to a revision.Â The second prevents XML-RPC from fetching incorrect post types.Â The third adds some user ID sanitization during bulk delete requests.Â For a list of changed files, consult the full changeset between 2.6.3 and 2.6.5.

Note that WordPress is skipping version 2.6.4 and jumping from 2.6.3 to 2.6.5 to avoid confusion with a fake 2.6.4 release that made the rounds.Â There is not and never will be a version 2.6.4.

So guys, upgrade now and avoid being ‘hacked’ and losing all your hardwork. To inform the world about this security update – Digg and Stumble this article! Download 2.6.5 from the OFFICIAL SITE AND NO WHERE ELSE!